Slim-type gas transporting device

ABSTRACT

A slim-type gas transporting device is provided and includes a base plate, a gas pump and a top covering. The base plate includes a first surface, a second surface, an accommodation groove, an outlet groove, a positioning portion, a ventilating hole, a circular truncated cone plug, an inlet tube and an outlet tube. The outlet groove includes an outlet channel in fluid communication with the outlet tube. The positioning portion surrounds the accommodation groove. The ventilating hole having a cone profile is located on the positioning portion and includes an inlet end in communication with the inlet tube and a ventilating end in communication with the accommodation groove. The circular truncated cone plug is accommodated in the ventilating hole. The gas pump is disposed on the accommodation groove and covers the outlet groove. The top covering is disposed on the positioning portion and covers the accommodation groove.

FIELD OF THE INVENTION

The present disclosure relates to a slim-type gas transporting device,and more particularly to a slim-type gas transporting device capable ofavoiding the gas reflowing.

BACKGROUND OF THE INVENTION

With the rapid advancement of science and technology, the application ofgas transportation device tends to be more and more diversified inindustrial applications, biomedical applications, healthcare, electroniccooling and so on, even in the wearable devices that become popularrecently. It is obviously that the conventional pumps have graduallytended to miniaturize the structure and maximize the flow rate thereof.

After the inflating process of the airbag is completed by a conventionalslim-type gas transporting device, gas reflowing frequently occurs whenthe slim-type gas transporting device is disabled. As a result, the gaspressure inside the airbag might be insufficient. Therefore, there is aneed of providing a solution to avoid the gas reflowing when theslim-type gas transporting device is disabled, so as to obviate thedrawbacks encountered from the prior arts.

Please refer to FIGS. 1A and 1B. FIGS. 1A and 1B are schematicperspective views illustrating a slim-type gas transporting device 200of prior art. The slim-type gas transporting device 200 includes a lowerplate 201, a gas pump 202 and a top covering 203. The lower plate 201includes an accommodation area 2011, a ventilating hole 2012, a steelball 2013, an inlet end 2014 and an outlet end 2015. The gas pump 202 isdisposed in the accommodation area 2011. The steel ball 2013 is disposedin the ventilating hole 2012. The top covering 203 covers theaccommodation area 2011. When the gas pump 202 is enabled, the gas inthe accommodation area 2011 is transported toward the outlet end 2015.Meanwhile, a negative pressure is generated in the accommodation area2011. As a result, the gas enters the ventilating hole 2012 through theinlet end 2014 and pushes the steel ball 2013 in the ventilating hole2012 upwardly, so that the gas can be transported constantly. When thegas pump 202 is disabled, the gas in the accommodation area 2011 pushesthe steel ball 2013 into the ventilating hole 2012 so as to seal theventilating hole 2012.

In the prior art, the steel ball 2013 is utilized to avoid the gasreflowing. However, when the steel ball 2013 moves inside theventilating hole 2012, contacts between the steel ball 2013 and theventilating hole 2012 led to friction and generate noise during themovement of the steel ball 2013. Moreover, pre-processing procedure isrequired for improving the air tightness between the steel ball 2013 andthe ventilating hole 2012 to achieve the desired air-tight effect.Because of the miniaturization of the slim-type gas transporting device,the pre-processing the ventilating hole 2012 consumes much time andworks. Furthermore, the steel ball 2013 may fail to return to theoriginal position due to the situation such as the gas pressure, the gasflowing direction or the tilt of the slim-type gas transporting device200 and results in the gas reflowing. Therefore, there is still a needof providing another solution to avoid the gas reflowing.

SUMMARY OF THE INVENTION

It is an object of the present disclosure to provide a slim-type gastransporting device. By disposing a circular truncated cone plug in thecone shaped ventilating hole tightly, the effect of avoiding the gasreflowing can be achieved.

In accordance with an aspect of the present disclosure, there isprovided a slim-type gas transporting device. The slim-type gastransporting device includes a base plate, a gas pump and a topcovering. The base plate includes a first surface, a second surface, anaccommodation groove, an outlet groove, a positioning portion, aventilating hole, a circular truncated cone plug, an inlet tube and anoutlet tube. The second surface is opposite to the first surface. Theaccommodation groove is recessed from the first surface and includes anaccommodation surface. The outlet groove is recessed from theaccommodation surface and includes an outlet channel. The positioningportion is protruded from the first surface and surrounds theaccommodation groove. The ventilating hole is located on the positioningportion and includes an inlet end and a ventilating end. The ventilatingend is in fluid communication with the accommodation groove, and theventilating hole is gradually shrunk from the ventilating end to theinlet end. The circular truncated cone plug is accommodated in theventilating hole and is in fit with the ventilating hole. The inlet tubeis in fluid communication with the inlet end of the ventilating hole.The outlet tube is in fluid communication with the outlet channel of theoutlet groove. The gas pump is disposed on the accommodation surface ofthe accommodation groove and covers the outlet groove. The top coveringis disposed on the positioning portion and covers the accommodationgroove.

BRIEF DESCRIPTION OF THE DRAWINGS

The above contents of the present invention will become more readilyapparent to those ordinarily skilled in the art after reviewing thefollowing detailed description and accompanying drawings, in which:

FIGS. 1A and 1B are schematic perspective views illustrating a slim-typegas transporting device of prior art;

FIG. 2A is a schematic perspective view illustrating the slim-type gastransporting device of the present disclosure;

FIG. 2B is an exploded view illustrating the slim-type gas transportingdevice of the present disclosure;

FIG. 2C is a bottom view illustrating the slim-type gas transportingdevice of the present disclosure;

FIG. 2D is a schematic perspective view illustrating the base plate ofthe present disclosure;

FIG. 3A is an exploded view illustrating the gas pump of the presentdisclosure;

FIG. 3B is another exploded view illustrating the gas pump of thepresent disclosure from a different perspective;

FIG. 4A is a schematic cross-sectional view illustrating the gas pump ofthe present disclosure;

FIGS. 4B to 4D schematically illustrate the operation steps of the gaspump of the present disclosure;

FIG. 5A is a schematic perspective view illustrating the circulartruncated cone plug of the present disclosure;

FIG. 5B is a side view illustrating the circular truncated cone plug ofthe present disclosure;

FIG. 6A is a schematic cross-sectional view illustrating the slim-typegas transporting device taken along a section line A-A′ of FIG. 2C;

FIG. 6B is a partial enlarged view illustrating the structure circled inFIG. 6A;

FIG. 6C schematically illustrates the inhaling path of the slim-type gastransporting device of the present disclosure;

FIG. 6D is a partial enlarged view illustrating the structure circled inFIG. 6C;

FIG. 6E is a schematic cross-sectional view illustrating the slim-typegas transporting device taken along a section line B-B′ of FIG. 2C; and

FIG. 6F schematically illustrates the structure of the slim-type gastransporting device of the present disclosure which avoids the gasreflowing.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The present invention will now be described more specifically withreference to the following embodiments. It is to be noted that thefollowing descriptions of preferred embodiments of this invention arepresented herein for purpose of illustration and description only. It isnot intended to be exhaustive or to be limited to the precise formdisclosed.

Please refer to FIGS. 2A and 2B. A slim-type gas transporting device 100is provided and includes a base plate 1, a gas pump 2 and a top covering3. The gas pump 2 is accommodated in the base plate 1, and then the topcovering 3 is fixed on the base plate 1.

Please refer to FIGS. 2C and 2D. The base plate 1 includes a firstsurface 11, a second surface 12, an accommodation groove 13, an outletgroove 14, a positioning portion 15, a ventilating hole 16, a circulartruncated cone plug 17, an inlet tube 18, an outlet tube 19, a firstsidewall 1 a, a second sidewall 1 b, a third sidewall 1 c and a fourthsidewall 1 d. The first surface 11 and the second surface 12 are twosurfaces opposite to each other. The accommodation groove 13 is recessedfrom the first surface 11 and includes an accommodation surface 131. Theoutlet groove 14 is recessed from the accommodation surface 131 andincludes a lateral wall 141 and an outlet channel 142. The outletchannel 142 is located on the lateral wall 141. The positioning portion15 in square shape is protruded from the first surface 11 and surroundsthe accommodation groove 13. The ventilating hole 16 is located on thepositioning portion 15 for the circular truncated cone plug 17 toaccommodate therein, and includes an inlet end 161 and a ventilating end162. The ventilating end 162 is in fluid communication with theaccommodation groove 13. The inlet tube 18 is extended outwardly fromthe first sidewall 1 a and is in fluid communication with the inlet end161 of the ventilating hole 16. The outlet tube 19 is extended outwardlyfrom the third sidewall 1 c opposite to the first sidewall 1 a and is influid communication with the outlet channel 142 of the outlet groove 14.The inlet tube 18 and the outlet tube 19 are spatially misaligned witheach other. Notably, the inlet tube 18 and the outlet tube 19 can bedisposed on the second sidewall 1 b or the fourth sidewall 1 d, but notlimited thereto.

As shown in FIG. 2B, in this embodiment, the gas pump 2 is disposed onthe accommodation surface 131 of the accommodation groove 13 and coversthe outlet groove 14. Please refer to FIGS. 3A and 3B. In thisembodiment, the gas pump 2 includes a gas inlet plate 21, a resonanceplate 22, a piezoelectric actuator 23, a first insulation plate 24, aconducting plate 25 and a second insulation plate 26, which are stackedon each other sequentially. In this embodiment, the gas inlet plate 21includes at least one inlet aperture 21 a, at least one convergencechannel 21 b and a convergence chamber 21 c. The at least one gas inletaperture 21 a is disposed to inhale the gas. The at least one gas inletaperture 21 a correspondingly penetrates through the gas inlet plate 21into the at least one convergence channel 21 b, and the at least oneconvergence channel 21 b is converged into the convergence chamber 21 c.Therefore, the gas inhaled through the at least one gas inlet aperture21 a is converged into the convergence chamber 21 c. The number of thegas inlet apertures 21 a is the same as the number of the convergencechannels 21 b. In this embodiment, the numbers of the gas inletapertures 21 a and the convergence channels 21 b are exemplified byfour, respectively, but not limited thereto. The four gas inletapertures 21 a penetrate through the gas inlet plate 21 into the fourconvergence channels 21 b respectively, and the four convergencechannels 21 b converge to the convergence chamber 21 c.

Please refer to FIGS. 3A, 3B and 4A. The resonance plate 22 is attachedto the gas inlet plate 21. The resonance plate 22 has a central aperture22 a, a movable part 22 b and a fixed part 22 c. The central aperture 22a is located at a center of the resonance plate 22 and is correspondingto the convergence chamber 21 c of the gas inlet plate 21. The movablepart 22 b surrounds the central aperture 22 a and is corresponding tothe convergence chamber 21 c. The fixed part 22 c is disposed around theperiphery of the resonance plate 22 and securely attached on the gasinlet plate 21.

Please refer to FIGS. 3A, 3B and 4A, again. The piezoelectric actuator23 is attached to the resonance plate 22 and is corresponding inposition to the resonance plate 22. The piezoelectric actuator 23includes a suspension plate 23 a, an outer frame 23 b, at least onebracket 23 c, a piezoelectric element 23 d, at least one clearance 23 eand a bulge 23 f. The suspension plate 23 a is square-shaped because thesquare suspension plate 23 a is more power-saving than the circularsuspension plate. Generally, the consumed power of the capacitive loadoperated under the resonance frequency would induce as the resonancefrequency raised. Since the resonance frequency of the square suspensionplate 23 a is obviously lower than that of the circular squaresuspension plate, the consumed power of the square suspension plate 23 awould be lesser. Therefore, the square suspension plate 23 a utilized inthe present disclosure has the advantage of power-saving. In thisembodiment, the outer frame 23 b is disposed around the periphery of thesuspension plate 23 a, and at least one bracket 23 c is connectedbetween the suspension plate 23 a and the outer frame 23 b forelastically supporting the suspension plate 23 a. The piezoelectricelement 23 d has a side, and the length of the side of the piezoelectricelement 23 d is less than or equal to that of the suspension plate 23 a.The piezoelectric element 23 d is attached to a surface of thesuspension plate 23 a. When a voltage is applied to the piezoelectricelement 23 d, the suspension plate 23 a is driven to undergo the bendingvibration. The at least one clearance 23 e is formed between thesuspension plate 23 a, the outer frame 23 b and the at least one bracket23 c for allowing the gas to flow through. The bulge 23 f is formed on asurface of the suspension plate 23 a opposite to the surface of thesuspension plate 23 a attached to the piezoelectric element 23 d. Inthis embodiment, the bulge 23 f is formed by an etching process on thesuspension plate 23 a. Accordingly, the bulge 23 f of the suspensionplate 23 a is integrally formed and protrudes from the surface oppositeto the one that the piezoelectric element 23 d is attached thereon, andformed a convex structure.

Please refer to FIGS. 3A, 3B and 4A. In this embodiment, the gas inletplate 21, the resonance plate 22, the piezoelectric actuator 23, thefirst insulation plate 24, the conducting plate 25 and the secondinsulation plate 26 are stacked and assembled sequentially. A chamberspace 27 is formed between the suspension plate 23 a and the resonanceplate 22, and the chamber space 27 is formed by filling a gap betweenthe resonance plate 22 and the outer frame 23 b of the piezoelectricactuator 23 with a material, such as a conductive adhesive, but notlimited thereto. Therefore, a specific depth between the resonance plate22 and the suspension plate 23 a is maintained and formed as the chamberspace 27, so as to guide the gas to pass rapidly. In addition, since theresonance plate 22 and the suspension plate 23 a are maintained at asuitable distance, the contact interference therebetween can be reduced,thereby largely reducing the noise. In other embodiments, the thicknessof the conductive adhesive filled into the gap between the resonanceplate 22 and the outer frame 23 b of the piezoelectric actuator 23 canbe reduced by increasing the height of the outer frame 23 b of thepiezoelectric actuator 23. Therefore, the entire assembling structure ofgas pump 2 would not be indirectly influenced by the hot-pressingtemperature and the cooling temperature, and avoiding the actualdistance between the suspension plate 23 a and the resonance plate 22 ofthe chamber space 27 being affected by the thermal expansion andcontraction of the filling material of the conductive adhesive, but isnot limited thereto. In addition, since the transportation effect of thegas pump 2 is affected by the chamber space 27, it is very important tomaintain a constant chamber space 27, so as to provide a stabletransportation efficiency of the gas pump 2.

In order to understand the actuation steps of the gas pump 2, pleaserefer to FIGS. 4B to 4D. Referring to FIG. 4B first, when thepiezoelectric element 23 d of the piezoelectric actuator 23 is deformedin response to an applied voltage, the suspension plate 23 a is drivento displace in the direction away from the resonance plate 22. In that,the volume of the chamber space 27 is increased, a negative pressure isgenerated in the chamber space 27, and the gas in the convergencechamber 21 c is introduced into the chamber space 27. At the same time,the resonance plate 22 is displaced synchronously under the influenceresonance effect, and thereby, the volume of the convergence chamber 21c is increased. Furthermore, a negative pressure state is generated inthe convergence chamber 21 c since the gas in the convergence chamber 21c is introduced into the chamber space 27, and the gas is inhaled intothe convergence chamber 21 c through the gas inlet apertures 21 a andthe convergence channels 21 b. Then, as shown in FIG. 4C, thepiezoelectric element 23 d drives the suspension plate 23 a to displaceupwardly toward the resonance plate 22 to compress the chamber space 27.Similarly, the resonance plate 22 is actuated and displaced upwardlyaway from the suspension plate 23 a under the resonance effect of thesuspension plate 23 a, and compress the air in the chamber space 27.Thus, the gas in the chamber space 27 is further transmitted downwardlyto pass through the clearances 23 e and achieves the effect of gastransportation. Finally, as shown in FIG. 4D, when the suspension plate23 a resiliently moves back to an initial state, the resonance plate 22displaces downwardly toward the suspension plate 23 a due to its inertiamomentum, and pushes the gas in the chamber space 27 toward theclearances 23 e. Meanwhile, the volume of the convergence chamber 21 cis increased. Thus, the gas outside is continuously inhaled and passedthrough the gas inlet apertures 21 a and the convergence channels 21 b,and converged into the convergence chamber 21 c. By repeating theactuation steps illustrated in FIGS. 4B to 4D continuously, the gas pump2 can continuously transport the gas at high speed. The gas enters thegas inlet apertures 21 a, flows through a flow path formed by the gasinlet plate 21 and the resonance plate 22 and result in a pressuregradient, and then transported through the clearances 23 e, so as toachieve the operation of gas transporting of the gas pump 2.

Please refer to FIGS. 5A and 5B. The circular truncated cone plug 17includes a sealing portion 171 and a dome structure 172. The sealingportion 171 is in a circular truncated cone shape and is in fit with theventilating hole 16. The sealing portion 171 includes a first sealingend 171 a and a second sealing end 171 b. The profile of the sealingportion 171 is gradually tapered from the first sealing end 171 a to thesecond sealing end 171 b. The dome structure 172 is disposed on thefirst sealing end 171 a. In this embodiment, the diameter of the firstsealing end 171 a is in a range between 1 mm and 1.4 mm. The diameter ofthe second sealing end 171 b is in a range between 0.8 mm and 0.9 mm. Inan embodiment, the diameter of the first sealing end 171 a is 1.2 mm,and the diameter of the second sealing end 171 b is 0.85 mm. Inaddition, the circular truncated cone plug 17 is made of an elasticmaterial, such as a silicone material or a rubber material, but notlimited thereto.

Please refer to FIGS. 6A and 6B. FIG. 6A is a schematic cross-sectionalview illustrating the slim-type gas transporting device taken along asection line A-A′ of FIG. 2C. FIG. 6B is a partial enlarged view of FIG.6A illustrating the structures around the ventilating hole 16. The gaspump 2 is accommodated in the accommodation groove 13, and the topcovering 3 covers the accommodation groove 13. Thereby, a gas chamber 32is formed between the top covering 3 and the gas pump 2. The gas chamber32 is in fluid communication with the ventilating hole 16. The sealingportion 171 of the circular truncated cone plug 17 is accommodated inthe ventilating hole 16. The first sealing end 171 a is corresponding toand seals the ventilating end 162. The second sealing end 171 b iscorresponding to the inlet end 161 and seals the ventilating hole 16.The dome structure 172 abuts the top covering 3 in an initial state andstays in an initial position. In this embodiment, the thickness of thedome structure 172 is 0.15 mm, but not limited thereto.

Please refer to FIGS. 6C and 6D. FIG. 6C schematically illustrates theinhaling path of the base plate 1 of the slim-type gas transportingdevice 100. FIG. 6D is a partial enlarged view of FIG. 6C illustratingthe structures around the ventilating hole 16. When the gas pump 2 isenabled, the gas inside the accommodation groove 13 is drawn andtransported downwardly to the outlet groove 14. As a result, a negativepressure state is generated in the space of the accommodation groove 13.Thereafter, the gas outside the slim-type gas transporting device 100enters the slim-type gas transporting device 100 through the inlet tube18 of the base plate 1 and pushes the circular truncated cone plug 17inside the ventilating hole 16 upwardly. The dome structure 172 pushedby the gas is abutting the top covering 3 and is compressed and deformed(as shown in FIG. 6D). Thereby, the first sealing end 171 a of thecircular truncated cone plug 17 is detached from the ventilating end 162of the ventilating hole 16, and the second sealing end 171 b is detachedfrom the ventilating hole 16. Meanwhile, the gas flows from the inlettube 18 and the ventilating hole 16 into the inlet end 161, flows intothe ventilating end 162 through the gap 163 between the ventilating hole16 and circular truncated cone plug 17, and then is transported into theaccommodation groove 13.

Please refer to FIG. 6E. FIG. 6E is a schematic cross-sectional viewillustrating the slim-type gas transporting device 100 taken along asection line B-B′ of FIG. 2C. The gas is continuously transported to theoutlet groove 14 by the gas pump 2. When the gas is transported to theoutlet groove 14, the gas is then transported to the outlet tube 19through the outlet channel 142 and is discharged from the outlet tube19, so as to complete the gas transportation process.

Please refer to FIG. 6F. FIG. 6F schematically illustrates the structureof the slim-type gas transporting device 100 of the present disclosurewhich avoids the gas reflowing. While the gas pump 2 is disabled, thegas pressure in the accommodation groove 13 is higher than the gaspressure outside the slim-type gas transporting device 100, and the gasstop entering the slim-type gas transporting device 100 through theinlet tube 18. Since the gas stop entering the slim-type gastransporting device 100, the force pushing on the circular truncatedcone plug 17 by the gas is vanished, and the dome structure 172compressed and deformed previously due to the gas pressure returns tothe initial state owing to the elasticity of circular truncated coneplug 17 per se, and pushes the top covering 3 to back to its initialposition. Consequently, the sealing portion 171 of the circulartruncated cone plug 17 is pushed to the ventilating hole 16, the firstsealing end 171 a seals the ventilating end 162, and the second sealingend 171 b seals the inlet end 161, thereby, the sealing portion 171 istightly attached to the ventilating hole 16 (as shown in FIG. 6B). As aresult, the gas is prevented from passing through the ventilating hole16 and reflowing into the inlet tube 18, so as to achieve the effect ofavoiding the gas reflowing.

Furthermore, in this embodiment, the ventilating hole 16 is tapered fromthe ventilating end 162 to the inlet end 161, so that the profile of theventilating hole 16 is a cone shape, namely a funnel shape, foraccommodating the circular truncated cone plug 17 therein. The slopeangle of the cone shaped ventilating hole 16 is in a range between 10degrees and 14 degrees. In an embodiment, the slope angle is 12 degrees.The diameter of the inlet end 161 is 0.68 mm and the diameter of theventilating end 162 is 1.2 mm.

Please refer to FIGS. 1B and 6C. The positioning portion 15 of the baseplate 1 includes at least one fixing hole 151. In this embodiment, thenumber of fixing holes 151 is exemplified by three, but not limitedthereto. The top covering 3 includes at least one fixing column 31. Thenumber and the position of the fixing column 31 are corresponding tothose of the fixing hole 151. The fixing columns 31 pass through thecorresponding fixing holes 151 respectively for positioning and fixing.

From the above descriptions, the present disclosure provides a slim-typegas transporting device. Through disposing the circular truncated coneplug in the funnel-shaped ventilating hole fit with the circulartruncated cone plug, the gas can pass through the gap formed between thecircular truncated cone plug and the ventilating hole when the circulartruncated cone plug is pushed to detach from the ventilating hole by thegas pressure difference as the gas pump is enabled, and enter theslim-type gas transporting device. When the gas pump is disabled, thecircular truncated cone plug returns to the initial position and istightly attached to the ventilating hole due to the elasticity of thecircular truncated cone plug per se, thereby effectively avoiding thegas reflowing. The circular truncated cone plug of the present inventioncan be replaced through the elasticity of the dome structure, andquickly seal the ventilating hole as the sealing portion of the circulartruncated cone plug is fit with the ventilating hole when the gas pumpis disabled, so as to prevent the problem of failing to return thecircular truncated cone plug.

While the disclosure has been described in terms of what is presentlyconsidered to be the most practical and preferred embodiments, it is tobe understood that the disclosure needs not be limited to the disclosedembodiment.

What is claimed is:
 1. A slim-type gas transporting device comprising: abase plate comprising: a first surface; a second surface opposite to thefirst surface; an accommodation groove recessed from the first surfaceand comprising an accommodation surface; an outlet groove recessed fromthe accommodation surface and comprising an outlet channel; apositioning portion protruded from the first surface and surrounding theaccommodation groove; a ventilating hole located on the positioningportion and comprising an inlet end and a ventilating end, wherein theventilating end is in fluid communication with the accommodation groove,and the ventilating hole is tapered from the ventilating end to theinlet end; a circular truncated cone plug accommodated in theventilating hole and fitted with the ventilating hole; an inlet tube influid communication with the inlet end of the ventilating hole; and anoutlet tube in fluid communication with the outlet channel of the outletgroove; a gas pump disposed on the accommodation surface of theaccommodation groove and covering the outlet groove; and a top coveringdisposed on the positioning portion and covering the accommodationgroove.
 2. The slim-type gas transporting device according to claim 1,wherein the circular truncated cone plug comprises a first sealing endand a second sealing end, wherein the first sealing end is correspondingto the ventilating end of the ventilating hole, and the second sealingend is corresponding to the inlet end of the ventilating hole.
 3. Theslim-type gas transporting device according to claim 2, wherein thecircular truncated cone plug comprises a dome structure disposed on thefirst sealing end.
 4. The slim-type gas transporting device according toclaim 3, wherein the dome structure abuts the top covering.
 5. Theslim-type gas transporting device according to claim 3, wherein thethickness of the dome structure is 0.15 mm.
 6. The slim-type gastransporting device according to claim 2, wherein the diameter of thefirst sealing end is in a range between 1 mm and 1.4 mm.
 7. Theslim-type gas transporting device according to claim 6, wherein thediameter of the first sealing end is 1.2 mm.
 8. The slim-type gastransporting device according to claim 6, wherein the diameter of thesecond sealing end is in a range between 0.8 mm and 0.9 mm.
 9. Theslim-type gas transporting device according to claim 8, wherein thediameter of the second sealing end is 0.85 mm.
 10. The slim-type gastransporting device according to claim 1, wherein the positioningportion comprises at least one fixing hole, and the top coveringcomprises at least one fixing column passing through the at least onefixing hole.
 11. The slim-type gas transporting device according toclaim 1, wherein the gas pump comprises: a gas inlet plate having atleast one gas inlet aperture, at least one convergence channel and aconvergence chamber, wherein the at least one gas inlet aperture isdisposed to inhale the gas, the at least one gas inlet aperturecorrespondingly penetrates through the gas inlet plate and in fluidcommunication with the at least one convergence channel, and the atleast one convergence channel is converged into the convergence chamber,so that the gas inhaled through the at least one gas inlet aperture isconverged into the convergence chamber; a resonance plate disposed onthe gas inlet plate and having a central aperture, a movable part and afixed part, wherein the central aperture is disposed at a center of theresonance plate and is corresponding to the center of the convergencechamber of the gas inlet plate, the movable part surrounds the centralaperture and is corresponding to the convergence chamber, and the fixedpart surrounds the movable part and is fixedly attached on the gas inletplate; and a piezoelectric actuator correspondingly disposed on theresonance plate; wherein a chamber space is formed between the resonanceplate and the piezoelectric actuator, so that when the piezoelectricactuator is driven, the gas introduced from the at least one gas inletaperture of the gas inlet plate is converged to the convergence chamberthrough the at least one convergence channel, and flows through thecentral aperture of the resonance plate so as to produce a resonanceeffect with the movable part of the resonance plate and thepiezoelectric actuator to transport the gas.
 12. The slim-type gastransporting device according to claim 11, wherein the piezoelectricactuator comprises: a suspension plate in square-shape permitted toundergo a bending vibration; an outer frame surrounding the suspensionplate; at least one bracket connected between the suspension plate andthe outer frame to provide an elastic support for the suspension plate;and a piezoelectric element having a side, wherein a length of the sideof the piezoelectric element is less than or equal to that of thesuspension plate, and the piezoelectric element is attached on a surfaceof the suspension plate, wherein when a voltage is applied to thepiezoelectric element, the suspension plate is driven to undergo thebending vibration.
 13. The slim-type gas transporting device accordingto claim 12, wherein the gas pump further comprises a first insulationplate, a conducting plate and a second insulation plate, and the gasinlet plate, the resonance plate, the piezoelectric actuator, the firstinsulation plate, the conducting plate and the second insulation plateare stacked and assembled sequentially.
 14. The slim-type gastransporting device according to claim 1, wherein the circular truncatedcone plug is made of an elastic material.
 15. The slim-type gastransporting device according to claim 14, wherein the elastic materialis a silicone material.
 16. The slim-type gas transporting deviceaccording to claim 14, wherein the elastic material is a rubbermaterial.